gn analyze output:
{
  "compile_targets": [],
  "status": "Found dependency",
  "test_targets": [
    "//llvm/test:check-llvm"
  ]
}
gn analyze input:
{
  "files": [
    "//lldb/bindings/interface/SBStructuredDataExtensions.i",
    "//lldb/test/API/python_api/sbstructureddata/TestStructuredDataAPI.py",
    "//llvm/test/Transforms/LoopVectorize/single-early-exit-deref-assumptions.ll",
    "//llvm/test/tools/llvm-exegesis/AArch64/no-aliasing-ld-str.s",
    "//llvm/tools/llvm-exegesis/lib/MCInstrDescView.cpp",
    "//llvm/utils/git/pre-push.py",
    "//llvm/utils/gn/secondary/clang-tools-extra/clang-reorder-fields/BUILD.gn",
    "//llvm/utils/gn/secondary/clang/lib/StaticAnalyzer/Checkers/BUILD.gn",
    "//llvm/utils/gn/secondary/libcxx/include/BUILD.gn",
    "//llvm/utils/gn/secondary/llvm/unittests/Target/RISCV/BUILD.gn",
    "//mlir/lib/Dialect/Linalg/Transforms/Specialize.cpp"
  ],
  "test_targets": [
    "//clang-tools-extra/clangd/test:check-clangd",
    "//clang-tools-extra/test:check-clang-tools",
    "//clang/test:check-clang",
    "//lld/test:check-lld",
    "//llvm/test:check-llvm"
  ],
  "additional_compile_targets": []
}